| 摘要 |
A reversible fragrance emitting unit adapted to rest on a table or other flat surface in either an upright position in which the rate of fragrance emission is low, or in an upside down position in which the emission rate is high, the unit having the same attractive outward appearance in either state. The unit consists of a fenestrated open-ended shell having a decorative form whose inlet and outlet ends are attached to inlet and outlet boxes of like dimensions, both having bottom walls. The inlet box has an open top, whereas the outlet box is closed by a top wall to define an internal chamber which extends through the shell between the bottom wall of the inlet box and the top wall of the outlet box. The chamber contains a charge of fragrance-emitting pellets in an amount sufficient to almost fill the inlet box when the unit is placed in its upright position in which the inlet box rests on the table and the pellets are confined within the inlet box and therefore emit relatively little fragrance, the unit being effectively "off". When, however, the unit is reversed to occupy its upside down position in which the outlet box rests on the table, the pellets then occupy the shell and emit fragrance through the openings therein at a much greater rate and the unit is "on".
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